Hold'em table

Three-handed, K5o on the button is a reasonable steal attempt; raising applies pressure on both blinds.

Nine-five offsuit out of position against a button raise with the big blind still to act has poor equity and no good postflop play; folding is clearly best.

63 offsuit is too weak to continue against a button raise to 2.5bb after the small blind folds. Folding avoids putting more chips in with a hand that has poor equity and little postflop playability.

Q5 offsuit is too weak to open from the button with no reads on the blinds; folding avoids a marginal postflop spot for a small steal attempt.

Button folded, so this is heads-up versus the big blind with pocket nines. Raising to 300 builds the pot and denies a cheap flop while keeping the sizing standard.

69s is suited and playable enough to open from the button in three-handed. A 2.5bb raise takes the initiative rather than limping a speculative hand.

A2 offsuit is too weak to continue facing a raise from the button out of position.

56 offsuit is far too weak to defend the big blind against a button raise out of position; calling 150 more has poor equity and no postflop plan, so folding preserves chips.

Button with Ace-high suited-ish offsuit hand; a standard open raise to steal blinds and build a pot with position.

ATo is strong enough to 3-bet from the small blind against a button open in a 3-handed game; I take the initiative, isolate the raiser, and have both fold equity and decent value. Calling out of position would leave me dominated too often.

AKs is a premium hand against a button open and small-blind three-bet, so a four-bet builds the pot and applies pressure before the flop.

Facing a 4-bet with weak offsuit ace and to_call of 2150 into deep stacks; fold is clearly best.

ATo is dominated by the big blind's 4-bet range, and calling 1650 into 3400 needs ~33% equity that ATo lacks against a strong range while out of position. A 5-bet shove performs even worse, so folding is clearly best.

K8o is playable on the button in a 3-handed game; a standard 3x open applies pressure on the blinds and lets me play position postflop.

J4o is too weak to continue against a button open, especially out of position with the big blind still to act. Folding avoids putting more chips in with a dominated offsuit hand.

7-T offsuit is weak; facing a 3x raise from the button as BB, folding is correct rather than calling with a poor hand.

T7o is too weak to open from the button in three-handed play; it is dominated often and plays poorly postflop, so folding is the higher-EV choice.

Cheap to see a flop heads-up with K3o after the button folded; not worth raising with a weak hand, but calling is low cost.

I'm in the big blind with 52o; checking costs nothing and lets me see a free flop, folding would waste my blind with no pressure applied.

No pair or draw with king-high; checking to see a free card and avoid building the pot with a weak hand.

I flopped middle pair (fives) with a weak kicker, and the SB's limp-check line suggests weakness. A small bet charges draws and worse hands while keeping the pot manageable if I'm already beaten.

King-high with no pair or draw facing a bet on a Q-5-4 board; not worth continuing.